{"id":37843,"date":"2024-11-26T17:34:30","date_gmt":"2024-11-26T09:34:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37843\/"},"modified":"2024-11-26T17:34:30","modified_gmt":"2024-11-26T09:34:30","slug":"leetcode-%e9%a1%b6%e7%ba%a7%e8%ae%bf%e8%b0%88-%e4%b9%b0%e5%8d%96%e8%82%a1%e7%a5%a8%e7%9a%84%e6%9c%80%e4%bd%b3%e6%97%b6%e6%9c%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37843\/","title":{"rendered":"Leetcode \u2014 \u9876\u7ea7\u8bbf\u8c08 \u2013 \u4e70\u5356\u80a1\u7968\u7684\u6700\u4f73\u65f6\u673a"},"content":{"rendered":"

\"Leetcode<\/p>\n

\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u95ee\u9898\uff0c\u63cf\u8ff0\u5982\u4e0b\uff1a<\/p>\n

\n \u7ed9\u4f60\u4e00\u4e2a\u6570\u7ec4\u4ef7\u683c\uff0c\u5176\u4e2dprices[i]\u662f\u7ed9\u5b9a\u80a1\u7968\u7b2ci\u5929\u7684\u4ef7\u683c\u3002 \u60a8\u5e0c\u671b\u901a\u8fc7\u9009\u62e9\u67d0\u4e00\u5929\u4e70\u5165\u4e00\u53ea\u80a1\u7968\u5e76\u9009\u62e9\u672a\u6765\u7684\u53e6\u4e00\u5929\u5356\u51fa\u8be5\u80a1\u7968\u6765\u6700\u5927\u5316\u60a8\u7684\u5229\u6da6\u3002 \u8fd4\u56de\u60a8\u53ef\u4ee5\u4ece\u672c\u6b21\u4ea4\u6613\u4e2d\u83b7\u5f97\u7684\u6700\u5927\u5229\u6da6\u3002\u5982\u679c\u65e0\u6cd5\u83b7\u5f97\u4efb\u4f55\u5229\u6da6\uff0c\u5219\u8fd4\u56de0\u3002 \u793a\u4f8b1\uff1a \u8f93\u5165\uff1a\u4ef7\u683c = [7,1,5,3,6,4] \u8f93\u51fa\uff1a5 \u8bf4\u660e\uff1a\u7b2c 2 \u5929\u4e70\u5165\uff08\u4ef7\u683c = 1\uff09\uff0c\u7b2c 5 \u5929\u5356\u51fa\uff08\u4ef7\u683c = 6\uff09\uff0c\u5229\u6da6 = 6-1 = 5\u3002 \u8bf7\u6ce8\u610f\uff0c\u4e0d\u5141\u8bb8\u5728\u7b2c 2 \u5929\u4e70\u5165\u5e76\u5728\u7b2c 1 \u5929\u5356\u51fa\uff0c\u56e0\u4e3a\u60a8\u5fc5\u987b\u5728\u5356\u51fa\u4e4b\u524d\u4e70\u5165\u3002 \u793a\u4f8b2\uff1a \u8f93\u5165\uff1a\u4ef7\u683c = [7,6,4,3,1] \u8f93\u51fa\uff1a0 \u8bf4\u660e\uff1a\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6ca1\u6709\u8fdb\u884c\u4efb\u4f55\u4ea4\u6613\uff0c\u6700\u5927\u5229\u6da6 = 0\u3002 \u9650\u5236\uff1a 1\n<\/p><\/blockquote>\n

\u8d77\u521d\u4f60\u4f1a\u8003\u8651\u6392\u5e8f\u5e76\u83b7\u5f97\u66f4\u5c0f\u548c\u66f4\u5927\u7684\u6570\u5b57\uff0c\u4f46\u53ef\u80fd\u4ece\u6570\u7ec4\u4e2d\u4f60\u53ef\u80fd\u4f1a\u5f97\u5230\u524d\u540e\u4e0d\u540c\u7684\u8303\u56f4\u6216\u6570\u5b57\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u5dee\u5f02\u4e0e\u9884\u671f\u4e0d\u7b26\uff0c\u6240\u4ee5\u5fd8\u8bb0\u6392\u5e8f\u3002 <\/p>\n

\u89e3\u51b3\u8fd9\u79cd\u60c5\u51b5\u7684\u4e00\u4e2a\u597d\u65b9\u6cd5\u662f\u5728\u8fed\u4ee3\u6570\u7ec4\u65f6\u8003\u8651\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u4ee5\u53ca\u5dee\u5f02\u3002\u5982\u679c\u6700\u5c0f\u503c\u5c0f\u4e8e\u9884\u671f\uff0c\u5219\u91cd\u7f6e\u6240\u6709\u5185\u5bb9\uff0c\u5426\u5219\u7ee7\u7eed\u524d\u8fdb\u5e76\u5728\u5c0f\u4e8e\u6700\u5927\u503c\u65f6\u66f4\u65b0\u6700\u5927\u503c\uff0c\u5e76\u4e14\u59cb\u7ec8\u83b7\u53d6\u5dee\u5f02\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6700\u5927\u503c\uff0c\u5426\u5219\u5f53\u6211\u4eec\u5f97\u5230\u5c0f\u4e8e\u6700\u5c0f\u503c\u4f46\u4e0d\u662f\u5927\u6700\u5927\u503c\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u5931\u8d25.<\/p>\n

class Solution {\n    public int maxProfit(int[] prices) {\n\n        int min = prices[0];\n        int max = prices[0];\n        int diff = 0;\n\n        for(int i=1;i<prices.length;i++) {\n            if(min > prices[i]){\n                min = prices[i];\n                max = prices[i];\n            } else if (max < prices[i]) {\n                max = prices[i];\n            }\n\n            if(diff < (max - min)) {\n                diff = max - min;\n            }\n        }\n\n        return diff;\n    }\n}\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\n
\u8fd0\u884c\u65f6\u95f4\uff1a2 \u6beb\u79d2\uff0c\u6bd4 77.66% \u7684 java \u5728\u7ebf\u63d0\u4ea4\u7684\u6700\u4f73\u4e70\u5356\u80a1\u7968\u65f6\u95f4\u8981\u5feb\u3002<\/p>\n
\u5185\u5b58\u4f7f\u7528\u91cf\uff1a61.4 mb\uff0c\u4f4e\u4e8e java \u5728\u7ebf\u63d0\u4ea4\u7684\u4e70\u5356\u80a1\u7968\u6700\u4f73\u65f6\u673a\u7684 80.34%\u3002<\/p>\n<\/blockquote>\n
\u60a8\u4ecd\u7136\u53ef\u4ee5\u8fdb\u4e00\u6b65\u6539\u8fdb\uff0c\u5220\u9664 min \u5e76\u4ec5\u4f7f\u7528 max\uff0c\u4f46\u5dee\u5f02\u5e76\u4e0d\u5927\uff0c\u4f46\u4ecd\u7136\u662f\u6027\u80fd\u6539\u8fdb\u3002<\/p>\n
\u2014<\/p>\n
\u5c31\u662f\u8fd9\u6837\uff01\u5982\u679c\u8fd8\u6709\u4ec0\u4e48\u8981\u8ba8\u8bba\u7684\uff0c\u8bf7\u968f\u65f6\u53d1\u8868\u8bc4\u8bba\uff0c\u5982\u679c\u6211\u9519\u8fc7\u4e86\u4efb\u4f55\u5185\u5bb9\uff0c\u8bf7\u544a\u8bc9\u6211\uff0c\u4ee5\u4fbf\u6211\u8fdb\u884c\u76f8\u5e94\u66f4\u65b0\u3002<\/p>\n
\u76f4\u5230\u4e0b\u4e00\u7bc7\u6587\u7ae0\uff01 \ud83d\ude42<\/p>\n
\u4ee5\u4e0a\u5c31\u662fLeetcode \u2014 \u9876\u7ea7\u8bbf\u8c08 \u2013 \u4e70\u5356\u80a1\u7968\u7684\u6700\u4f73\u65f6\u673a\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u95ee\u9898\uff0c\u63cf\u8ff0\u5982\u4e0b\uff1a \u7ed9\u4f60\u4e00\u4e2a\u6570\u7ec4\u4ef7\u683c\uff0c\u5176\u4e2dprices[i]\u662f\u7ed9\u5b9a\u80a1\u7968\u7b2ci\u5929\u7684\u4ef7\u683c\u3002 \u60a8\u5e0c\u671b\u901a\u8fc7\u9009\u62e9\u67d0\u4e00\u5929\u4e70\u5165\u4e00\u53ea\u80a1\u7968\u5e76\u9009\u62e9\u672a\u6765\u7684\u53e6\u4e00\u5929\u5356\u51fa\u8be5\u80a1\u7968\u6765\u6700\u5927\u5316\u60a8\u7684\u5229\u6da6\u3002 \u8fd4\u56de\u60a8\u53ef\u4ee5\u4ece\u672c\u6b21\u4ea4\u6613\u4e2d\u83b7\u5f97\u7684\u6700\u5927\u5229\u6da6\u3002\u5982\u679c\u65e0\u6cd5\u83b7\u5f97\u4efb\u4f55\u5229\u6da6\uff0c\u5219\u8fd4\u56de0\u3002 \u793a\u4f8b1\uff1a \u8f93\u5165\uff1a\u4ef7\u683c = [7,1,5,3,6,4] \u8f93\u51fa\uff1a5 \u8bf4\u660e\uff1a\u7b2c 2 \u5929\u4e70\u5165\uff08\u4ef7\u683c = 1\uff09\uff0c\u7b2c 5 \u5929\u5356\u51fa\uff08\u4ef7\u683c = 6\uff09\uff0c\u5229\u6da6 = 6-1 = 5\u3002 \u8bf7\u6ce8\u610f\uff0c\u4e0d\u5141\u8bb8\u5728\u7b2c 2 \u5929\u4e70\u5165\u5e76\u5728\u7b2c 1 \u5929\u5356\u51fa\uff0c\u56e0\u4e3a\u60a8\u5fc5\u987b\u5728\u5356\u51fa\u4e4b\u524d\u4e70\u5165\u3002 \u793a\u4f8b2\uff1a \u8f93\u5165\uff1a\u4ef7\u683c = [7,6,4,3,1] \u8f93\u51fa\uff1a0 \u8bf4\u660e\uff1a\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6ca1\u6709\u8fdb\u884c\u4efb\u4f55\u4ea4\u6613\uff0c\u6700\u5927\u5229\u6da6 = 0\u3002 \u9650\u5236\uff1a 1 \u8d77\u521d\u4f60\u4f1a\u8003\u8651\u6392\u5e8f\u5e76\u83b7\u5f97\u66f4\u5c0f\u548c\u66f4\u5927\u7684\u6570\u5b57\uff0c\u4f46\u53ef\u80fd\u4ece\u6570\u7ec4\u4e2d\u4f60\u53ef\u80fd\u4f1a\u5f97\u5230\u524d\u540e\u4e0d\u540c\u7684\u8303\u56f4\u6216\u6570\u5b57\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u5dee\u5f02\u4e0e\u9884\u671f\u4e0d\u7b26\uff0c\u6240\u4ee5\u5fd8\u8bb0\u6392\u5e8f\u3002 \u89e3\u51b3\u8fd9\u79cd\u60c5\u51b5\u7684\u4e00\u4e2a\u597d\u65b9\u6cd5\u662f\u5728\u8fed\u4ee3\u6570\u7ec4\u65f6\u8003\u8651\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u4ee5\u53ca\u5dee\u5f02\u3002\u5982\u679c\u6700\u5c0f\u503c\u5c0f\u4e8e\u9884\u671f\uff0c\u5219\u91cd\u7f6e\u6240\u6709\u5185\u5bb9\uff0c\u5426\u5219\u7ee7\u7eed\u524d\u8fdb\u5e76\u5728\u5c0f\u4e8e\u6700\u5927\u503c\u65f6\u66f4\u65b0\u6700\u5927\u503c\uff0c\u5e76\u4e14\u59cb\u7ec8\u83b7\u53d6\u5dee\u5f02\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6700\u5927\u503c\uff0c\u5426\u5219\u5f53\u6211\u4eec\u5f97\u5230\u5c0f\u4e8e\u6700\u5c0f\u503c\u4f46\u4e0d\u662f\u5927\u6700\u5927\u503c\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u5931\u8d25. class Solution { public int maxProfit(int[] prices) { int min = prices[0]; int max = prices[0]; […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-37843","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=37843"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37843\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}